./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cbmc-regression/float_lib2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5fbdf5bf Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cbmc-regression/float_lib2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bb715f893a8d779115a1e4ab8c45115be341dce1 ....................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cbmc-regression/float_lib2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bb715f893a8d779115a1e4ab8c45115be341dce1 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-29 06:41:37,871 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-29 06:41:37,873 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-29 06:41:37,915 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-29 06:41:37,916 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-29 06:41:37,919 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-29 06:41:37,920 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-29 06:41:37,924 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-29 06:41:37,926 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-29 06:41:37,931 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-29 06:41:37,931 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-29 06:41:37,935 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-29 06:41:37,935 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-29 06:41:37,937 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-29 06:41:37,938 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-29 06:41:37,938 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-29 06:41:37,939 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-29 06:41:37,939 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-29 06:41:37,940 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-29 06:41:37,941 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-29 06:41:37,944 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-29 06:41:37,944 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-29 06:41:37,946 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-29 06:41:37,946 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-29 06:41:37,949 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-29 06:41:37,950 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-29 06:41:37,951 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-29 06:41:37,952 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-29 06:41:37,952 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-29 06:41:37,954 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-29 06:41:37,954 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-29 06:41:37,955 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-29 06:41:37,956 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-29 06:41:37,956 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-29 06:41:37,957 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-29 06:41:37,957 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-29 06:41:37,958 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-29 06:41:37,958 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-29 06:41:37,958 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-29 06:41:37,960 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-29 06:41:37,960 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-29 06:41:37,961 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-29 06:41:37,988 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-29 06:41:37,988 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-29 06:41:37,989 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-29 06:41:37,989 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-29 06:41:37,990 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-29 06:41:37,990 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-29 06:41:37,991 INFO L138 SettingsManager]: * Use SBE=true [2021-08-29 06:41:37,991 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-29 06:41:37,991 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-29 06:41:37,991 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-29 06:41:37,992 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-29 06:41:37,992 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-29 06:41:37,992 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-29 06:41:37,992 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-29 06:41:37,992 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-29 06:41:37,992 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-29 06:41:37,992 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-29 06:41:37,993 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-29 06:41:37,993 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-29 06:41:37,993 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-29 06:41:37,993 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-29 06:41:37,993 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-29 06:41:37,993 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 06:41:37,993 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-29 06:41:37,994 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-29 06:41:37,994 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-29 06:41:37,994 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-29 06:41:37,994 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-29 06:41:37,994 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-29 06:41:37,994 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-29 06:41:37,994 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bb715f893a8d779115a1e4ab8c45115be341dce1 [2021-08-29 06:41:38,212 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-29 06:41:38,225 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-29 06:41:38,227 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-29 06:41:38,228 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-29 06:41:38,229 INFO L275 PluginConnector]: CDTParser initialized [2021-08-29 06:41:38,230 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float_lib2.i [2021-08-29 06:41:38,282 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c1e274f7/38cb0e58875c426e964655403613fa4c/FLAG3d6498837 [2021-08-29 06:41:38,718 INFO L306 CDTParser]: Found 1 translation units. [2021-08-29 06:41:38,719 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float_lib2.i [2021-08-29 06:41:38,734 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c1e274f7/38cb0e58875c426e964655403613fa4c/FLAG3d6498837 [2021-08-29 06:41:38,743 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c1e274f7/38cb0e58875c426e964655403613fa4c [2021-08-29 06:41:38,747 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-29 06:41:38,748 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-29 06:41:38,749 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-29 06:41:38,750 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-29 06:41:38,752 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-29 06:41:38,752 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 06:41:38" (1/1) ... [2021-08-29 06:41:38,753 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5347e556 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:41:38, skipping insertion in model container [2021-08-29 06:41:38,753 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 06:41:38" (1/1) ... [2021-08-29 06:41:38,757 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-29 06:41:38,795 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-29 06:41:39,091 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fpclassify at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:846) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:1694) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:236) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1408) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2349) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:712) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2349) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2349) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1576) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:229) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1052) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1430) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3219) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2299) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:580) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-08-29 06:41:39,095 INFO L158 Benchmark]: Toolchain (without parser) took 346.31ms. Allocated memory is still 56.6MB. Free memory was 33.9MB in the beginning and 38.5MB in the end (delta: -4.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-08-29 06:41:39,096 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 56.6MB. Free memory was 39.1MB in the beginning and 39.1MB in the end (delta: 42.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 06:41:39,098 INFO L158 Benchmark]: CACSL2BoogieTranslator took 344.32ms. Allocated memory is still 56.6MB. Free memory was 33.8MB in the beginning and 38.5MB in the end (delta: -4.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-08-29 06:41:39,099 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 56.6MB. Free memory was 39.1MB in the beginning and 39.1MB in the end (delta: 42.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 344.32ms. Allocated memory is still 56.6MB. Free memory was 33.8MB in the beginning and 38.5MB in the end (delta: -4.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fpclassify de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fpclassify: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:846) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-29 06:41:40,368 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-29 06:41:40,370 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-29 06:41:40,402 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-29 06:41:40,403 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-29 06:41:40,405 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-29 06:41:40,406 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-29 06:41:40,410 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-29 06:41:40,412 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-29 06:41:40,415 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-29 06:41:40,416 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-29 06:41:40,418 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-29 06:41:40,419 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-29 06:41:40,420 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-29 06:41:40,422 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-29 06:41:40,425 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-29 06:41:40,425 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-29 06:41:40,426 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-29 06:41:40,427 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-29 06:41:40,430 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-29 06:41:40,431 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-29 06:41:40,439 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-29 06:41:40,440 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-29 06:41:40,441 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-29 06:41:40,445 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-29 06:41:40,446 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-29 06:41:40,447 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-29 06:41:40,447 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-29 06:41:40,448 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-29 06:41:40,449 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-29 06:41:40,449 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-29 06:41:40,449 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-29 06:41:40,450 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-29 06:41:40,451 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-29 06:41:40,452 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-29 06:41:40,452 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-29 06:41:40,453 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-29 06:41:40,453 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-29 06:41:40,453 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-29 06:41:40,454 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-29 06:41:40,454 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-29 06:41:40,455 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-08-29 06:41:40,475 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-29 06:41:40,476 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-29 06:41:40,476 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-29 06:41:40,477 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-29 06:41:40,478 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-29 06:41:40,478 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-29 06:41:40,478 INFO L138 SettingsManager]: * Use SBE=true [2021-08-29 06:41:40,478 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-29 06:41:40,479 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-29 06:41:40,479 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-29 06:41:40,479 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-29 06:41:40,479 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-29 06:41:40,480 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-29 06:41:40,480 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-29 06:41:40,480 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-29 06:41:40,480 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-29 06:41:40,480 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-29 06:41:40,480 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-29 06:41:40,481 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-29 06:41:40,481 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-29 06:41:40,481 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-29 06:41:40,481 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-29 06:41:40,481 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-29 06:41:40,481 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 06:41:40,486 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-29 06:41:40,486 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-29 06:41:40,486 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-29 06:41:40,487 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-29 06:41:40,487 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-29 06:41:40,487 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-29 06:41:40,487 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-29 06:41:40,487 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-29 06:41:40,487 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bb715f893a8d779115a1e4ab8c45115be341dce1 [2021-08-29 06:41:40,737 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-29 06:41:40,759 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-29 06:41:40,761 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-29 06:41:40,761 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-29 06:41:40,762 INFO L275 PluginConnector]: CDTParser initialized [2021-08-29 06:41:40,763 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float_lib2.i [2021-08-29 06:41:40,813 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/beafe4cd0/d31cdf61126049f8b8c3701cbc846dc5/FLAG961fbcf44 [2021-08-29 06:41:41,265 INFO L306 CDTParser]: Found 1 translation units. [2021-08-29 06:41:41,266 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float_lib2.i [2021-08-29 06:41:41,274 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/beafe4cd0/d31cdf61126049f8b8c3701cbc846dc5/FLAG961fbcf44 [2021-08-29 06:41:41,285 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/beafe4cd0/d31cdf61126049f8b8c3701cbc846dc5 [2021-08-29 06:41:41,286 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-29 06:41:41,287 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-29 06:41:41,288 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-29 06:41:41,289 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-29 06:41:41,296 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-29 06:41:41,297 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 06:41:41" (1/1) ... [2021-08-29 06:41:41,297 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cd4cb21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:41:41, skipping insertion in model container [2021-08-29 06:41:41,298 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 06:41:41" (1/1) ... [2021-08-29 06:41:41,302 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-29 06:41:41,337 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-29 06:41:41,668 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float_lib2.i[40343,40356] [2021-08-29 06:41:41,671 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float_lib2.i[40604,40617] [2021-08-29 06:41:41,672 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float_lib2.i[40865,40878] [2021-08-29 06:41:41,673 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float_lib2.i[41126,41139] [2021-08-29 06:41:41,675 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float_lib2.i[41387,41400] [2021-08-29 06:41:41,676 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float_lib2.i[41463,41476] [2021-08-29 06:41:41,680 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float_lib2.i[41741,41754] [2021-08-29 06:41:41,681 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 06:41:41,688 INFO L203 MainTranslator]: Completed pre-run [2021-08-29 06:41:41,709 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float_lib2.i[40343,40356] [2021-08-29 06:41:41,710 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float_lib2.i[40604,40617] [2021-08-29 06:41:41,711 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float_lib2.i[40865,40878] [2021-08-29 06:41:41,712 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float_lib2.i[41126,41139] [2021-08-29 06:41:41,713 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float_lib2.i[41387,41400] [2021-08-29 06:41:41,713 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float_lib2.i[41463,41476] [2021-08-29 06:41:41,714 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float_lib2.i[41741,41754] [2021-08-29 06:41:41,714 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 06:41:41,780 INFO L208 MainTranslator]: Completed translation [2021-08-29 06:41:41,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:41:41 WrapperNode [2021-08-29 06:41:41,781 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-29 06:41:41,782 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-29 06:41:41,782 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-29 06:41:41,782 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-29 06:41:41,786 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:41:41" (1/1) ... [2021-08-29 06:41:41,799 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:41:41" (1/1) ... [2021-08-29 06:41:41,816 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-29 06:41:41,819 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-29 06:41:41,819 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-29 06:41:41,819 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-29 06:41:41,824 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:41:41" (1/1) ... [2021-08-29 06:41:41,825 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:41:41" (1/1) ... [2021-08-29 06:41:41,826 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:41:41" (1/1) ... [2021-08-29 06:41:41,826 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:41:41" (1/1) ... [2021-08-29 06:41:41,831 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:41:41" (1/1) ... [2021-08-29 06:41:41,832 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:41:41" (1/1) ... [2021-08-29 06:41:41,833 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:41:41" (1/1) ... [2021-08-29 06:41:41,835 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-29 06:41:41,835 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-29 06:41:41,835 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-29 06:41:41,835 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-29 06:41:41,845 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:41:41" (1/1) ... [2021-08-29 06:41:41,849 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 06:41:41,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 06:41:41,870 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-29 06:41:41,884 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-29 06:41:41,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-08-29 06:41:41,900 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-29 06:41:41,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-29 06:41:41,901 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-29 06:41:41,996 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-29 06:41:41,996 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-08-29 06:41:41,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:41:41 BoogieIcfgContainer [2021-08-29 06:41:41,998 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-29 06:41:41,999 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-29 06:41:41,999 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-29 06:41:42,001 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-29 06:41:42,001 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 06:41:41" (1/3) ... [2021-08-29 06:41:42,001 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fd94cd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 06:41:42, skipping insertion in model container [2021-08-29 06:41:42,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:41:41" (2/3) ... [2021-08-29 06:41:42,002 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fd94cd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 06:41:42, skipping insertion in model container [2021-08-29 06:41:42,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:41:41" (3/3) ... [2021-08-29 06:41:42,003 INFO L111 eAbstractionObserver]: Analyzing ICFG float_lib2.i [2021-08-29 06:41:42,006 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-29 06:41:42,006 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2021-08-29 06:41:42,041 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-29 06:41:42,049 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-29 06:41:42,049 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-08-29 06:41:42,060 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 20 states have (on average 1.7) internal successors, (34), 27 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 06:41:42,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-08-29 06:41:42,071 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 06:41:42,072 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-08-29 06:41:42,072 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-08-29 06:41:42,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 06:41:42,080 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2021-08-29 06:41:42,087 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 06:41:42,087 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [574221573] [2021-08-29 06:41:42,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 06:41:42,089 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 06:41:42,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 06:41:42,122 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 06:41:42,124 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-08-29 06:41:42,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 06:41:42,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-29 06:41:42,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 06:41:42,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 06:41:42,324 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 06:41:42,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 06:41:42,406 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 06:41:42,406 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [574221573] [2021-08-29 06:41:42,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [574221573] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 06:41:42,406 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 06:41:42,407 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-08-29 06:41:42,408 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139359715] [2021-08-29 06:41:42,411 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 06:41:42,411 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 06:41:42,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 06:41:42,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 06:41:42,429 INFO L87 Difference]: Start difference. First operand has 28 states, 20 states have (on average 1.7) internal successors, (34), 27 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 06:41:42,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 06:41:42,471 INFO L93 Difference]: Finished difference Result 51 states and 62 transitions. [2021-08-29 06:41:42,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 06:41:42,473 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-08-29 06:41:42,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 06:41:42,478 INFO L225 Difference]: With dead ends: 51 [2021-08-29 06:41:42,478 INFO L226 Difference]: Without dead ends: 22 [2021-08-29 06:41:42,480 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.20ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 06:41:42,483 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 13 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.38ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.56ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 18 IncrementalHoareTripleChecker+Unchecked, 29.71ms IncrementalHoareTripleChecker+Time [2021-08-29 06:41:42,483 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 0 Invalid, 52 Unknown, 0 Unchecked, 0.56ms Time], IncrementalHoareTripleChecker [4 Valid, 30 Invalid, 0 Unknown, 18 Unchecked, 29.71ms Time] [2021-08-29 06:41:42,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-08-29 06:41:42,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2021-08-29 06:41:42,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 16 states have (on average 1.3125) internal successors, (21), 21 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 06:41:42,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 21 transitions. [2021-08-29 06:41:42,502 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 21 transitions. Word has length 4 [2021-08-29 06:41:42,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 06:41:42,503 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 21 transitions. [2021-08-29 06:41:42,503 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 06:41:42,503 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 21 transitions. [2021-08-29 06:41:42,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-08-29 06:41:42,503 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 06:41:42,504 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-08-29 06:41:42,515 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-08-29 06:41:42,717 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 06:41:42,718 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-08-29 06:41:42,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 06:41:42,720 INFO L82 PathProgramCache]: Analyzing trace with hash 28697799, now seen corresponding path program 1 times [2021-08-29 06:41:42,722 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 06:41:42,722 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [496758756] [2021-08-29 06:41:42,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 06:41:42,723 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 06:41:42,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 06:41:42,724 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 06:41:42,760 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-08-29 06:41:42,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 06:41:42,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-29 06:41:42,771 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 06:41:42,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 06:41:42,877 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 06:41:42,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 06:41:42,965 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 06:41:42,965 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [496758756] [2021-08-29 06:41:42,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [496758756] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 06:41:42,965 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 06:41:42,965 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-08-29 06:41:42,966 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747581690] [2021-08-29 06:41:42,966 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 06:41:42,967 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 06:41:42,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 06:41:42,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 06:41:42,967 INFO L87 Difference]: Start difference. First operand 22 states and 21 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 06:41:42,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 06:41:42,989 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2021-08-29 06:41:42,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 06:41:42,990 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-08-29 06:41:42,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 06:41:42,990 INFO L225 Difference]: With dead ends: 22 [2021-08-29 06:41:42,990 INFO L226 Difference]: Without dead ends: 20 [2021-08-29 06:41:42,991 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.03ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 06:41:42,991 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 8 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.42ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.27ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 18 IncrementalHoareTripleChecker+Unchecked, 19.27ms IncrementalHoareTripleChecker+Time [2021-08-29 06:41:42,992 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 0 Invalid, 43 Unknown, 0 Unchecked, 0.27ms Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 0 Unknown, 18 Unchecked, 19.27ms Time] [2021-08-29 06:41:42,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-08-29 06:41:42,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-08-29 06:41:42,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 19 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 06:41:42,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 19 transitions. [2021-08-29 06:41:42,994 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 19 transitions. Word has length 5 [2021-08-29 06:41:42,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 06:41:42,995 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 19 transitions. [2021-08-29 06:41:42,995 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 06:41:42,995 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 19 transitions. [2021-08-29 06:41:42,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-08-29 06:41:42,995 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 06:41:42,995 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-08-29 06:41:43,005 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-08-29 06:41:43,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 06:41:43,205 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-08-29 06:41:43,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 06:41:43,206 INFO L82 PathProgramCache]: Analyzing trace with hash 889635852, now seen corresponding path program 1 times [2021-08-29 06:41:43,207 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 06:41:43,207 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1972876491] [2021-08-29 06:41:43,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 06:41:43,209 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 06:41:43,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 06:41:43,211 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 06:41:43,213 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-08-29 06:41:43,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 06:41:43,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-29 06:41:43,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 06:41:43,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 06:41:43,260 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 06:41:43,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 06:41:43,306 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 06:41:43,306 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1972876491] [2021-08-29 06:41:43,306 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1972876491] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 06:41:43,306 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 06:41:43,306 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-08-29 06:41:43,306 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593693809] [2021-08-29 06:41:43,307 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 06:41:43,307 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 06:41:43,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 06:41:43,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 06:41:43,308 INFO L87 Difference]: Start difference. First operand 20 states and 19 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 06:41:43,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 06:41:43,322 INFO L93 Difference]: Finished difference Result 20 states and 19 transitions. [2021-08-29 06:41:43,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 06:41:43,322 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-08-29 06:41:43,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 06:41:43,323 INFO L225 Difference]: With dead ends: 20 [2021-08-29 06:41:43,323 INFO L226 Difference]: Without dead ends: 18 [2021-08-29 06:41:43,323 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.97ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 06:41:43,324 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.70ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.17ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 16 IncrementalHoareTripleChecker+Unchecked, 12.19ms IncrementalHoareTripleChecker+Time [2021-08-29 06:41:43,324 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 30 Unknown, 0 Unchecked, 0.17ms Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 16 Unchecked, 12.19ms Time] [2021-08-29 06:41:43,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-08-29 06:41:43,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-08-29 06:41:43,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 17 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 06:41:43,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2021-08-29 06:41:43,326 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 6 [2021-08-29 06:41:43,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 06:41:43,326 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2021-08-29 06:41:43,327 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 06:41:43,327 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2021-08-29 06:41:43,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-08-29 06:41:43,327 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 06:41:43,327 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-29 06:41:43,339 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-08-29 06:41:43,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 06:41:43,537 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-08-29 06:41:43,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 06:41:43,538 INFO L82 PathProgramCache]: Analyzing trace with hash 1808911727, now seen corresponding path program 1 times [2021-08-29 06:41:43,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 06:41:43,538 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [275006605] [2021-08-29 06:41:43,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 06:41:43,538 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 06:41:43,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 06:41:43,539 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 06:41:43,558 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-08-29 06:41:43,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 06:41:43,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-29 06:41:43,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 06:41:43,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 06:41:43,618 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 06:41:43,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 06:41:43,650 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 06:41:43,650 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [275006605] [2021-08-29 06:41:43,650 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [275006605] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 06:41:43,650 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 06:41:43,650 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-08-29 06:41:43,651 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543897517] [2021-08-29 06:41:43,651 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 06:41:43,651 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 06:41:43,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 06:41:43,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 06:41:43,652 INFO L87 Difference]: Start difference. First operand 18 states and 17 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 06:41:43,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 06:41:43,666 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2021-08-29 06:41:43,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 06:41:43,666 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-08-29 06:41:43,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 06:41:43,667 INFO L225 Difference]: With dead ends: 18 [2021-08-29 06:41:43,667 INFO L226 Difference]: Without dead ends: 16 [2021-08-29 06:41:43,667 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.58ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 06:41:43,668 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 6 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.15ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.15ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 14 IncrementalHoareTripleChecker+Unchecked, 12.51ms IncrementalHoareTripleChecker+Time [2021-08-29 06:41:43,668 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 0 Invalid, 29 Unknown, 0 Unchecked, 0.15ms Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 14 Unchecked, 12.51ms Time] [2021-08-29 06:41:43,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-08-29 06:41:43,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-08-29 06:41:43,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 15 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 06:41:43,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2021-08-29 06:41:43,673 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 7 [2021-08-29 06:41:43,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 06:41:43,673 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2021-08-29 06:41:43,674 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 06:41:43,674 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2021-08-29 06:41:43,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-08-29 06:41:43,675 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 06:41:43,675 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 06:41:43,682 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-08-29 06:41:43,880 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 06:41:43,881 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-08-29 06:41:43,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 06:41:43,882 INFO L82 PathProgramCache]: Analyzing trace with hash 241692788, now seen corresponding path program 1 times [2021-08-29 06:41:43,882 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 06:41:43,882 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [41397318] [2021-08-29 06:41:43,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 06:41:43,882 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 06:41:43,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 06:41:43,884 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 06:41:43,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 06:41:43,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-29 06:41:43,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 06:41:43,932 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-08-29 06:41:43,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 06:41:43,971 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 06:41:43,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 06:41:43,998 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 06:41:43,998 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [41397318] [2021-08-29 06:41:43,998 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [41397318] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 06:41:43,998 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 06:41:43,998 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-08-29 06:41:43,998 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268623922] [2021-08-29 06:41:43,999 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 06:41:43,999 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 06:41:43,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 06:41:43,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 06:41:43,999 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 06:41:44,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 06:41:44,012 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2021-08-29 06:41:44,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 06:41:44,013 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-08-29 06:41:44,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 06:41:44,013 INFO L225 Difference]: With dead ends: 16 [2021-08-29 06:41:44,013 INFO L226 Difference]: Without dead ends: 14 [2021-08-29 06:41:44,014 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.68ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 06:41:44,015 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 3 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.33ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.12ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 12 IncrementalHoareTripleChecker+Unchecked, 10.01ms IncrementalHoareTripleChecker+Time [2021-08-29 06:41:44,015 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 0 Invalid, 24 Unknown, 0 Unchecked, 0.12ms Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 12 Unchecked, 10.01ms Time] [2021-08-29 06:41:44,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-08-29 06:41:44,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-08-29 06:41:44,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 13 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 06:41:44,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 13 transitions. [2021-08-29 06:41:44,017 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 13 transitions. Word has length 8 [2021-08-29 06:41:44,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 06:41:44,018 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 13 transitions. [2021-08-29 06:41:44,018 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 06:41:44,018 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 13 transitions. [2021-08-29 06:41:44,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-08-29 06:41:44,018 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 06:41:44,018 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 06:41:44,027 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-08-29 06:41:44,225 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 06:41:44,226 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-08-29 06:41:44,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 06:41:44,226 INFO L82 PathProgramCache]: Analyzing trace with hash -1097454057, now seen corresponding path program 1 times [2021-08-29 06:41:44,227 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 06:41:44,227 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1025868829] [2021-08-29 06:41:44,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 06:41:44,227 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 06:41:44,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 06:41:44,228 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 06:41:44,228 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-08-29 06:41:44,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 06:41:44,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-29 06:41:44,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 06:41:44,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 06:41:44,303 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 06:41:44,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 06:41:44,332 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 06:41:44,333 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1025868829] [2021-08-29 06:41:44,333 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1025868829] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 06:41:44,333 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 06:41:44,333 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-08-29 06:41:44,333 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995178568] [2021-08-29 06:41:44,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 06:41:44,333 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 06:41:44,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 06:41:44,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 06:41:44,334 INFO L87 Difference]: Start difference. First operand 14 states and 13 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 06:41:44,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 06:41:44,342 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2021-08-29 06:41:44,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 06:41:44,343 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-08-29 06:41:44,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 06:41:44,343 INFO L225 Difference]: With dead ends: 14 [2021-08-29 06:41:44,343 INFO L226 Difference]: Without dead ends: 12 [2021-08-29 06:41:44,343 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.00ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 06:41:44,344 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.83ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.08ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 10 IncrementalHoareTripleChecker+Unchecked, 7.03ms IncrementalHoareTripleChecker+Time [2021-08-29 06:41:44,344 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 19 Unknown, 0 Unchecked, 0.08ms Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 10 Unchecked, 7.03ms Time] [2021-08-29 06:41:44,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2021-08-29 06:41:44,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-08-29 06:41:44,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0) internal successors, (11), 11 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 06:41:44,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2021-08-29 06:41:44,345 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 9 [2021-08-29 06:41:44,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 06:41:44,346 INFO L470 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2021-08-29 06:41:44,346 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 06:41:44,346 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2021-08-29 06:41:44,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-08-29 06:41:44,346 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 06:41:44,346 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 06:41:44,353 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-08-29 06:41:44,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 06:41:44,547 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-08-29 06:41:44,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 06:41:44,548 INFO L82 PathProgramCache]: Analyzing trace with hash 1908731737, now seen corresponding path program 1 times [2021-08-29 06:41:44,548 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 06:41:44,548 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2026498833] [2021-08-29 06:41:44,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 06:41:44,548 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 06:41:44,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 06:41:44,549 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 06:41:44,549 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-08-29 06:41:44,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 06:41:44,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-29 06:41:44,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 06:41:44,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 06:41:44,843 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 06:41:44,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 06:41:44,950 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 06:41:44,950 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2026498833] [2021-08-29 06:41:44,950 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2026498833] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 06:41:44,950 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 06:41:44,950 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-08-29 06:41:44,950 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970969215] [2021-08-29 06:41:44,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-29 06:41:44,951 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 06:41:44,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-29 06:41:44,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-08-29 06:41:44,951 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 06:41:44,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 06:41:44,957 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2021-08-29 06:41:44,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 06:41:44,958 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-08-29 06:41:44,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 06:41:44,958 INFO L225 Difference]: With dead ends: 12 [2021-08-29 06:41:44,958 INFO L226 Difference]: Without dead ends: 0 [2021-08-29 06:41:44,958 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.31ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-08-29 06:41:44,958 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.25ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.05ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 8 IncrementalHoareTripleChecker+Unchecked, 4.93ms IncrementalHoareTripleChecker+Time [2021-08-29 06:41:44,959 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 13 Unknown, 0 Unchecked, 0.05ms Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 8 Unchecked, 4.93ms Time] [2021-08-29 06:41:44,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-29 06:41:44,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-29 06:41:44,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 06:41:44,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-29 06:41:44,959 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2021-08-29 06:41:44,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 06:41:44,960 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-29 06:41:44,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 06:41:44,960 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-29 06:41:44,960 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-29 06:41:44,961 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2021-08-29 06:41:44,962 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2021-08-29 06:41:44,962 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (4 of 7 remaining) [2021-08-29 06:41:44,962 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (3 of 7 remaining) [2021-08-29 06:41:44,962 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (2 of 7 remaining) [2021-08-29 06:41:44,962 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2021-08-29 06:41:44,962 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2021-08-29 06:41:44,973 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-08-29 06:41:45,172 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 06:41:45,175 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-29 06:41:45,184 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 06:41:45,206 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 381) no Hoare annotation was computed. [2021-08-29 06:41:45,206 INFO L858 garLoopResultBuilder]: For program point L378(line 378) no Hoare annotation was computed. [2021-08-29 06:41:45,206 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 377) no Hoare annotation was computed. [2021-08-29 06:41:45,207 INFO L858 garLoopResultBuilder]: For program point L378-2(lines 374 385) no Hoare annotation was computed. [2021-08-29 06:41:45,207 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-08-29 06:41:45,207 INFO L858 garLoopResultBuilder]: For program point L383(line 383) no Hoare annotation was computed. [2021-08-29 06:41:45,207 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 380) no Hoare annotation was computed. [2021-08-29 06:41:45,207 INFO L858 garLoopResultBuilder]: For program point L383-1(line 383) no Hoare annotation was computed. [2021-08-29 06:41:45,207 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-29 06:41:45,207 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-29 06:41:45,207 INFO L858 garLoopResultBuilder]: For program point L383-3(line 383) no Hoare annotation was computed. [2021-08-29 06:41:45,207 INFO L858 garLoopResultBuilder]: For program point L379(line 379) no Hoare annotation was computed. [2021-08-29 06:41:45,207 INFO L858 garLoopResultBuilder]: For program point L379-2(lines 374 385) no Hoare annotation was computed. [2021-08-29 06:41:45,207 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 376) no Hoare annotation was computed. [2021-08-29 06:41:45,207 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-29 06:41:45,207 INFO L854 garLoopResultBuilder]: At program point L384(lines 373 385) the Hoare annotation is: (not (fp.isNaN ULTIMATE.start_main_~largestSubnormalFloat~0)) [2021-08-29 06:41:45,207 INFO L858 garLoopResultBuilder]: For program point L380(line 380) no Hoare annotation was computed. [2021-08-29 06:41:45,208 INFO L858 garLoopResultBuilder]: For program point L380-2(lines 374 385) no Hoare annotation was computed. [2021-08-29 06:41:45,208 INFO L858 garLoopResultBuilder]: For program point L376(line 376) no Hoare annotation was computed. [2021-08-29 06:41:45,208 INFO L858 garLoopResultBuilder]: For program point L376-1(line 376) no Hoare annotation was computed. [2021-08-29 06:41:45,208 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 379) no Hoare annotation was computed. [2021-08-29 06:41:45,208 INFO L858 garLoopResultBuilder]: For program point L376-3(lines 374 385) no Hoare annotation was computed. [2021-08-29 06:41:45,208 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 383) no Hoare annotation was computed. [2021-08-29 06:41:45,208 INFO L858 garLoopResultBuilder]: For program point L381(line 381) no Hoare annotation was computed. [2021-08-29 06:41:45,208 INFO L858 garLoopResultBuilder]: For program point L381-2(line 381) no Hoare annotation was computed. [2021-08-29 06:41:45,208 INFO L858 garLoopResultBuilder]: For program point L377(line 377) no Hoare annotation was computed. [2021-08-29 06:41:45,208 INFO L858 garLoopResultBuilder]: For program point L377-2(lines 374 385) no Hoare annotation was computed. [2021-08-29 06:41:45,208 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 378) no Hoare annotation was computed. [2021-08-29 06:41:45,211 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-29 06:41:45,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 06:41:45 BoogieIcfgContainer [2021-08-29 06:41:45,219 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-29 06:41:45,219 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-29 06:41:45,219 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-29 06:41:45,219 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-29 06:41:45,220 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:41:41" (3/4) ... [2021-08-29 06:41:45,221 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-29 06:41:45,227 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-08-29 06:41:45,227 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-08-29 06:41:45,227 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-29 06:41:45,228 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-29 06:41:45,247 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-29 06:41:45,247 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-29 06:41:45,247 INFO L158 Benchmark]: Toolchain (without parser) took 3959.98ms. Allocated memory was 54.5MB in the beginning and 98.6MB in the end (delta: 44.0MB). Free memory was 29.8MB in the beginning and 62.4MB in the end (delta: -32.6MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. [2021-08-29 06:41:45,248 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 54.5MB. Free memory is still 36.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 06:41:45,248 INFO L158 Benchmark]: CACSL2BoogieTranslator took 492.58ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 29.5MB in the beginning and 47.4MB in the end (delta: -17.8MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. [2021-08-29 06:41:45,248 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.39ms. Allocated memory is still 67.1MB. Free memory was 47.4MB in the beginning and 44.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 06:41:45,248 INFO L158 Benchmark]: Boogie Preprocessor took 15.81ms. Allocated memory is still 67.1MB. Free memory was 44.8MB in the beginning and 43.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 06:41:45,248 INFO L158 Benchmark]: RCFGBuilder took 162.75ms. Allocated memory is still 67.1MB. Free memory was 43.3MB in the beginning and 34.4MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-08-29 06:41:45,249 INFO L158 Benchmark]: TraceAbstraction took 3219.97ms. Allocated memory was 67.1MB in the beginning and 98.6MB in the end (delta: 31.5MB). Free memory was 33.8MB in the beginning and 65.4MB in the end (delta: -31.7MB). Peak memory consumption was 888.7kB. Max. memory is 16.1GB. [2021-08-29 06:41:45,249 INFO L158 Benchmark]: Witness Printer took 27.82ms. Allocated memory is still 98.6MB. Free memory was 65.4MB in the beginning and 62.4MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 06:41:45,250 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 54.5MB. Free memory is still 36.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 492.58ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 29.5MB in the beginning and 47.4MB in the end (delta: -17.8MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.39ms. Allocated memory is still 67.1MB. Free memory was 47.4MB in the beginning and 44.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 15.81ms. Allocated memory is still 67.1MB. Free memory was 44.8MB in the beginning and 43.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 162.75ms. Allocated memory is still 67.1MB. Free memory was 43.3MB in the beginning and 34.4MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 3219.97ms. Allocated memory was 67.1MB in the beginning and 98.6MB in the end (delta: 31.5MB). Free memory was 33.8MB in the beginning and 65.4MB in the end (delta: -31.7MB). Peak memory consumption was 888.7kB. Max. memory is 16.1GB. * Witness Printer took 27.82ms. Allocated memory is still 98.6MB. Free memory was 65.4MB in the beginning and 62.4MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 376]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 377]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 378]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 379]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 380]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 381]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 383]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 28 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 3171.19ms, OverallIterations: 7, TraceHistogramMax: 1, EmptinessCheckTime: 16.26ms, AutomataDifference: 169.94ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 32.39ms, InitialAbstractionConstructionTime: 7.87ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 30 SdHoareTripleChecker+Valid, 95.65ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 30 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 77.07ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 96 IncrementalHoareTripleChecker+Unchecked, 49 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 105 IncrementalHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 0 mSDtfsCounter, 105 mSolverCounterSat, 1.39ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 86 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 62.78ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=0, InterpolantAutomatonStates: 26, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 20.66ms AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.00ms HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 3 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 27.51ms HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 1.15ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 27.07ms SsaConstructionTime, 64.99ms SatisfiabilityAnalysisTime, 1099.76ms InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 86 ConstructedInterpolants, 28 QuantifiedInterpolants, 293 SizeOfPredicates, 21 NumberOfNonLiveVariables, 169 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 7 specifications checked. All of them hold - InvariantResult [Line: 373]: Loop Invariant Derived loop invariant: !~fp.isNaN~LONGDOUBLE(largestSubnormalFloat) RESULT: Ultimate proved your program to be correct! [2021-08-29 06:41:45,275 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...